/* ===== RESET & BASE ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --primary: #0057FF;
  --primary-dark: #0040CC;
  --accent: #00C2FF;
  --dark: #0A0F1E;
  --dark2: #111827;
  --text: #1F2937;
  --muted: #6B7280;
  --light-bg: #F3F6FB;
  --white: #FFFFFF;
  --border: #E5E7EB;
  --radius: 12px;
  --shadow: 0 4px 24px rgba(0,0,0,0.08);
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', sans-serif;
  color: var(--text);
  background: var(--white);
  line-height: 1.7;
  font-size: 16px;
}

a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; }

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section { padding: 96px 0; }
.bg-light { background: var(--light-bg); }
.bg-dark { background: var(--dark2); }

.label {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 12px;
}
.label.center { display: block; text-align: center; }
.label.light { color: var(--accent); }

h2 {
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 700;
  line-height: 1.2;
  color: var(--dark);
  margin-bottom: 20px;
}
h2.center { text-align: center; }
h2.light { color: var(--white); }

h3 { font-size: 20px; font-weight: 600; margin-bottom: 10px; }
h4 { font-size: 16px; font-weight: 600; margin-bottom: 10px; color: var(--dark); }

p { color: var(--muted); margin-bottom: 16px; }
p:last-child { margin-bottom: 0; }

.section-sub {
  max-width: 640px;
  margin: 0 auto 56px;
  text-align: center;
  font-size: 17px;
}

/* ===== BUTTONS ===== */
.btn-primary {
  display: inline-block;
  background: var(--primary);
  color: var(--white);
  padding: 14px 32px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 15px;
  border: none;
  cursor: pointer;
  transition: background 0.2s, transform 0.15s;
}
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-1px); }

.btn-outline {
  display: inline-block;
  border: 2px solid rgba(255,255,255,0.5);
  color: var(--white);
  padding: 13px 32px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 15px;
  transition: border-color 0.2s, background 0.2s;
}
.btn-outline:hover { border-color: var(--white); background: rgba(255,255,255,0.1); }

/* ===== NAVBAR ===== */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(10, 15, 30, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.logo {
  font-size: 22px;
  font-weight: 700;
  color: var(--white);
  letter-spacing: -0.5px;
}
.logo span { color: var(--accent); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}
.nav-links a {
  color: rgba(255,255,255,0.75);
  font-size: 14px;
  font-weight: 500;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--white); }

.btn-nav {
  background: var(--primary) !important;
  color: var(--white) !important;
  padding: 9px 22px;
  border-radius: 7px;
  font-weight: 600 !important;
  transition: background 0.2s !important;
}
.btn-nav:hover { background: var(--primary-dark) !important; }

.hamburger {
  display: none;
  background: none;
  border: none;
  color: var(--white);
  font-size: 22px;
  cursor: pointer;
}

/* ===== HERO ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, var(--dark) 0%, #0D1B3E 60%, #0A2A5E 100%);
  overflow: hidden;
  padding-top: 68px;
}

.hero::before {
  content: '';
  position: absolute;
  width: 700px; height: 700px;
  background: radial-gradient(circle, rgba(0,87,255,0.18) 0%, transparent 70%);
  top: -100px; right: -100px;
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(0,194,255,0.12) 0%, transparent 70%);
  bottom: 0; left: 10%;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 720px;
  padding: 80px 24px;
}

.hero-tag {
  display: inline-block;
  background: rgba(0,194,255,0.12);
  color: var(--accent);
  border: 1px solid rgba(0,194,255,0.3);
  padding: 6px 16px;
  border-radius: 100px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 1px;
  margin-bottom: 24px;
}

.hero h1 {
  font-size: clamp(38px, 6vw, 68px);
  font-weight: 700;
  color: var(--white);
  line-height: 1.1;
  margin-bottom: 24px;
}

.hero-sub {
  font-size: 18px;
  color: rgba(255,255,255,0.65);
  max-width: 560px;
  margin-bottom: 40px;
}

.hero-cta { display: flex; gap: 16px; flex-wrap: wrap; }

/* ===== ABOUT ===== */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

.about-text strong { color: var(--dark); font-weight: 600; }

.values-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.value-card {
  background: var(--light-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 18px;
  font-size: 14px;
  font-weight: 500;
  color: var(--dark);
  display: flex;
  align-items: center;
  gap: 10px;
  transition: box-shadow 0.2s;
}
.value-card:hover { box-shadow: var(--shadow); }
.value-card span { font-size: 18px; }

/* ===== HALLMARKS ===== */
.hallmarks {
  background: var(--primary);
  padding: 48px 0;
}

.hallmarks-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  text-align: center;
}

.hallmark-item strong {
  display: block;
  font-size: 18px;
  color: var(--white);
  margin-bottom: 6px;
}
.hallmark-item p {
  font-size: 14px;
  color: rgba(255,255,255,0.75);
  margin: 0;
}

/* ===== SERVICES ===== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-top: 56px;
}

.service-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: box-shadow 0.25s, transform 0.2s;
}
.service-card:hover { box-shadow: 0 8px 32px rgba(0,87,255,0.1); transform: translateY(-4px); }

.service-icon { font-size: 36px; margin-bottom: 16px; }

.service-card ul {
  margin-top: 14px;
  list-style: none;
}
.service-card ul li {
  font-size: 14px;
  color: var(--muted);
  padding: 4px 0;
  padding-left: 16px;
  position: relative;
}
.service-card ul li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--primary);
  font-size: 12px;
}

/* ===== TECH STACK ===== */
.tech-categories {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-top: 56px;
}

.tech-group h4 {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--primary);
  margin-bottom: 14px;
}

.tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tech-tags span {
  background: var(--light-bg);
  border: 1px solid var(--border);
  color: var(--dark);
  font-size: 13px;
  font-weight: 500;
  padding: 5px 12px;
  border-radius: 100px;
  transition: background 0.2s, border-color 0.2s;
}
.tech-tags span:hover { background: var(--primary); color: var(--white); border-color: var(--primary); }

/* ===== PROJECTS ===== */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-top: 56px;
}

.project-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  transition: box-shadow 0.25s, transform 0.2s;
}
.project-card:hover { box-shadow: 0 8px 32px rgba(0,0,0,0.1); transform: translateY(-4px); }

.project-meta {
  display: flex;
  gap: 10px;
  margin-bottom: 12px;
}

.project-year, .project-team {
  font-size: 12px;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 100px;
}
.project-year { background: rgba(0,87,255,0.08); color: var(--primary); }
.project-team { background: var(--light-bg); color: var(--muted); }

.project-location {
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 10px;
}

.project-tag {
  display: inline-block;
  margin-top: 14px;
  font-size: 12px;
  font-weight: 600;
  color: var(--primary);
  background: rgba(0,87,255,0.07);
  padding: 4px 12px;
  border-radius: 100px;
}

/* ===== WHY IBIT ===== */
.why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-top: 56px;
}

.why-card {
  background: var(--light-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: box-shadow 0.2s;
}
.why-card:hover { box-shadow: var(--shadow); }

.why-num {
  font-size: 36px;
  font-weight: 700;
  color: var(--primary);
  opacity: 0.25;
  line-height: 1;
  margin-bottom: 12px;
}

/* ===== CONTACT ===== */
.contact-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

.contact-info h2 { color: var(--white); }
.contact-info p { color: rgba(255,255,255,0.65); }

.contact-details {
  margin-top: 28px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.contact-details li {
  color: rgba(255,255,255,0.8);
  font-size: 15px;
}
.contact-details a { color: var(--accent); }
.contact-details a:hover { text-decoration: underline; }

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.contact-form input,
.contact-form textarea {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 8px;
  padding: 14px 16px;
  color: var(--white);
  font-family: inherit;
  font-size: 15px;
  outline: none;
  transition: border-color 0.2s;
}
.contact-form input::placeholder,
.contact-form textarea::placeholder { color: rgba(255,255,255,0.35); }
.contact-form input:focus,
.contact-form textarea:focus { border-color: var(--primary); }
.contact-form textarea { resize: vertical; }

.form-success {
  display: none;
  color: #4ADE80;
  font-size: 14px;
  text-align: center;
}

/* ===== FOOTER ===== */
.footer {
  background: var(--dark);
  padding: 40px 0;
  text-align: center;
}
.footer-inner p { color: rgba(255,255,255,0.45); font-size: 14px; margin-bottom: 6px; }
.footer-inner .logo { font-size: 20px; font-weight: 700; color: var(--white); margin-bottom: 8px; }
.footer-copy { margin-top: 16px; font-size: 13px; }

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .services-grid,
  .projects-grid { grid-template-columns: repeat(2, 1fr); }
  .tech-categories { grid-template-columns: repeat(2, 1fr); }
  .why-grid { grid-template-columns: repeat(2, 1fr); }
  .hallmarks-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .section { padding: 64px 0; }

  .nav-links { display: none; flex-direction: column; gap: 0; }
  .nav-links.open {
    display: flex;
    position: absolute;
    top: 68px; left: 0; right: 0;
    background: var(--dark);
    padding: 16px 24px 24px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
  }
  .nav-links.open li { padding: 10px 0; border-bottom: 1px solid rgba(255,255,255,0.06); }
  .hamburger { display: block; }

  .two-col,
  .contact-inner { grid-template-columns: 1fr; gap: 40px; }

  .services-grid,
  .projects-grid,
  .tech-categories,
  .why-grid { grid-template-columns: 1fr; }

  .hallmarks-grid { grid-template-columns: 1fr 1fr; }

  .hero h1 { font-size: 36px; }
  .hero-cta { flex-direction: column; }
  .btn-primary, .btn-outline { text-align: center; }
}

@media (max-width: 480px) {
  .hallmarks-grid { grid-template-columns: 1fr; }
  .values-grid { grid-template-columns: 1fr; }
}

/* ===== SCROLL REVEAL ===== */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}